in a stunning two-part interview with oprah winfrey, fallen cycling great, lance armstrong, confessed that not a single one of his seven tour de france wins was done without the help of a banned substance. and for his millions of fans around the world who believed him, armstrong shared this message. >> i understand your anger, your sense of betrayal. you supported me forever, through all of this, and you believed, and i lied to you. and i'm sorry. and i will spend -- i will spend, and i am committed to spending, as long as i have to to make amends. knowing full well that i won't, i won't get very many back. >> president obama's second inaugural won't have quite the same glitter as that historic first one, but just as in 2009, they will be very busy this inaugural weekend. nearly a million people are expected for the swearing in and the parade on monday. all of it taking place under very tight security. and that all starts today. the president and vice president joe biden will take part in a community clear project. by example, both are urging americans to take part in the national day